1 /* 2 * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef OS_LINUX_GLOBALS_LINUX_HPP 26 #define OS_LINUX_GLOBALS_LINUX_HPP 27 28 // 29 // Defines Linux specific flags. They are not available on other platforms. 30 // 31 #define RUNTIME_OS_FLAGS(develop, \ 32 develop_pd, \ 33 product, \ 34 product_pd, \ 35 diagnostic, \ 36 diagnostic_pd, \ 37 notproduct, \ 38 range, \ 39 constraint, \ 40 writeable) \ 41 \ 42 product(bool, UseOprofile, false, \ 43 "enable support for Oprofile profiler") \ 44 \ 45 /* NB: The default value of UseLinuxPosixThreadCPUClocks may be */ \ 46 /* overridden in Arguments::parse_each_vm_init_arg. */ \ 47 product(bool, UseLinuxPosixThreadCPUClocks, true, \ 48 "enable fast Linux Posix clocks where available") \ 49 \ 50 product(bool, UseHugeTLBFS, false, \ 51 "Use MAP_HUGETLB for large pages") \ 52 \ 53 product(bool, UseTransparentHugePages, false, \ 54 "Use MADV_HUGEPAGE for large pages") \ 55 \ 56 product(bool, LoadExecStackDllInVMThread, true, \ 57 "Load DLLs with executable-stack attribute in the VM Thread") \ 58 \ 59 product(bool, UseSHM, false, \ 60 "Use SYSV shared memory for large pages") \ | 1 /* 2 * Copyright (c) 2005, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef OS_LINUX_GLOBALS_LINUX_HPP 26 #define OS_LINUX_GLOBALS_LINUX_HPP 27 28 // 29 // Defines Linux specific flags. They are not available on other platforms. 30 // 31 #define RUNTIME_OS_FLAGS(develop, \ 32 develop_pd, \ 33 product, \ 34 product_pd, \ 35 diagnostic, \ 36 diagnostic_pd, \ 37 notproduct, \ 38 range, \ 39 constraint) \ 40 \ 41 product(bool, UseOprofile, false, \ 42 "enable support for Oprofile profiler") \ 43 \ 44 /* NB: The default value of UseLinuxPosixThreadCPUClocks may be */ \ 45 /* overridden in Arguments::parse_each_vm_init_arg. */ \ 46 product(bool, UseLinuxPosixThreadCPUClocks, true, \ 47 "enable fast Linux Posix clocks where available") \ 48 \ 49 product(bool, UseHugeTLBFS, false, \ 50 "Use MAP_HUGETLB for large pages") \ 51 \ 52 product(bool, UseTransparentHugePages, false, \ 53 "Use MADV_HUGEPAGE for large pages") \ 54 \ 55 product(bool, LoadExecStackDllInVMThread, true, \ 56 "Load DLLs with executable-stack attribute in the VM Thread") \ 57 \ 58 product(bool, UseSHM, false, \ 59 "Use SYSV shared memory for large pages") \ |